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d8e83d26b5
linux/kernel/trace
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Steven Rostedt d8e83d26b5 tracing: add protection around open use of current_tracer 
Impact: fix to possible race conditions

There's some uses of current_tracer that is not protected by the
trace_types_lock. There is a small chance that a sysadmin changes
the tracer while the current_tracer is being referenced.

If the race is hit, it is unlikely to cause any harm since the
tracers are constant and are not freed. But some strang side
effects may occur.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
2009-02-26 23:55:58 -05:00
..
blktrace.c Merge branch 'linus' into tracing/blktrace 2009-02-19 09:00:35 +01:00
events.c tracing, genirq: add irq enter and exit trace events 2009-02-26 18:43:50 +01:00
ftrace.c Merge branch 'tip/x86/ftrace' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/ftrace 2009-02-22 18:12:01 +01:00
Kconfig tracing: add event trace infrastructure 2009-02-24 21:54:05 -05:00
kmemtrace.c tracing: Introduce trace_buffer_{lock_reserve,unlock_commit} 2009-02-06 01:01:41 +01:00
Makefile tracing: implement trace_clock_*() APIs 2009-02-26 18:44:06 +01:00
ring_buffer.c tracing: implement trace_clock_*() APIs 2009-02-26 18:44:06 +01:00
trace_boot.c tracing: Introduce trace_buffer_{lock_reserve,unlock_commit} 2009-02-06 01:01:41 +01:00
trace_branch.c tracing: remove unneeded variable 2009-02-10 12:32:18 -05:00
trace_clock.c tracing: implement trace_clock_*() APIs 2009-02-26 18:44:06 +01:00
trace_events.c tracing: make event directory structure 2009-02-24 21:54:08 -05:00
trace_events.h tracing: rename DEFINE_TRACE_FMT to just TRACE_FORMAT 2009-02-25 21:44:22 -05:00
trace_functions_graph.c tracing/function-graph-tracer: fix merge 2009-02-19 13:01:37 +01:00
trace_functions.c tracing/core: use appropriate waiting on trace_pipe 2009-02-18 01:40:20 +01:00
trace_hw_branches.c tracing/hw-branch-tracing: convert bts-tracer mutex to a spinlock 2009-02-25 09:16:01 +01:00
trace_irqsoff.c tracing: fix typing mistake in hint message and comments 2009-02-17 12:38:24 -05:00
trace_mmiotrace.c mmiotrace: count events lost due to not recording 2009-02-15 20:02:42 +01:00
trace_nop.c trace: Call tracing_reset_online_cpus before tracer->init() 2009-02-06 01:01:41 +01:00
trace_output.c Merge branch 'tip/tracing/core/devel' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/ftrace 2009-02-09 10:35:12 +01:00
trace_output.h trace: make the trace_event callbacks return enum print_line_t 2009-02-04 20:48:39 +01:00
trace_power.c tracing: convert c/p state power tracer to use tracepoints 2009-02-13 09:06:18 -05:00
trace_sched_switch.c tracing/core: use appropriate waiting on trace_pipe 2009-02-18 01:40:20 +01:00
trace_sched_wakeup.c tracing/core: use appropriate waiting on trace_pipe 2009-02-18 01:40:20 +01:00
trace_selftest_dynamic.c
trace_selftest.c Merge branches 'tracing/blktrace', 'tracing/ftrace' and 'tracing/urgent' into tracing/core 2009-02-19 10:20:17 +01:00
trace_stack.c trace: better use of stack_trace_enabled for boot up code 2008-12-18 12:56:56 +01:00
trace_stat.c tracing: fix typing mistake in hint message and comments 2009-02-17 12:38:24 -05:00
trace_stat.h tracing/ftrace: separate events tracing and stats tracing engine 2009-01-14 12:11:37 +01:00
trace_sysprof.c tracing: fix typing mistake in hint message and comments 2009-02-17 12:38:24 -05:00
trace_workqueue.c trace_workqueue: use percpu data for workqueue stat 2009-01-20 13:06:59 +01:00
trace.c tracing: add protection around open use of current_tracer 2009-02-26 23:55:58 -05:00
trace.h tracing/core: make the read callbacks reentrants 2009-02-25 13:40:58 +01:00